| PIRS | plasma immunoreactive secretion |
|---|---|
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| Se | secretion; selenium |
| SR | sarcoplasmic reticulum; saturation recovery; scanning radiometer; screen; secretion rate; sedimentat... |
| FSH-RH | Follicle Stimulating Hormone Releasing Hormone |